title: Differential identification of Mycobacterium fortuitum and Mycobacterium chelonei.
abstract: Mycobacterium fortuitum and Mycobacterium chelonei are distinguished unambiguously by the combined use of five test characters: nitrate reductase, beta-glucosidase, acid production from fructose, penicillinase, and trehalase. Typically, M. fortuitum was nitrate reductase positive, beta-glucosidase positive; M. chelonei was nitrate reductase negative, beta-glucosidase negative, penicillinase positive, and trehalase positive and did not produce acid from fructose.
mesh_terms: D005632:Fructose / Q000378:metabolism; D009161:Mycobacterium / Q000145:classification* / Q000378:metabolism; D009565:Nitrate Reductases / Q000378:metabolism; D009170:Nontuberculous Mycobacteria / Q000145:classification* / Q000378:metabolism; D010405:Penicillinase / Q000378:metabolism; D014198:Trehalase / Q000378:metabolism; D001617:beta-Glucosidase / Q000378:metabolism
chemical_list: D005632:Fructose; D009565:Nitrate Reductases; D001617:beta-Glucosidase; D014198:Trehalase; D010405:Penicillinase